Safety reversible window



m. W49 L. I. ALPIERIN SAFETY REVERSIBLE WINDOW 3 Sheets-Sheet 1 FiledApril 16, 1946 L.- l. ALPERIN SAFETY REVERSIBLE WINDOW w m my 3Sheets-Sheet 3 Filed April 16, 1946 Ema line a Patented Dec. 20, 1949UNITED STATES PATENT OFFICE 7 Claims.

My invention relates broadly to windows and more particularly tohardware for double hun slidable and reversible window sashes.

One of the objects of my invention is to provide a simplifiedarrangement of hardware for a double hung slidable and reversible windowsash installation which enables such sashes to be operated in anydesired vertically slida-ble position or in any tilting position.

Still another object of my invention is to provide an improvedconstruction of hardware for double hung reversible window sashincluding weather stripping for air conditioning and protectivepurposes.

Still another object Of my invention is to provide a simplifiedconstruction of hardware assembly for operation of double hung slidalblewindow sash in tilting and reversing arrangements while providing atight seal between the sash and frame when the sash is moved to normalvertical- 1y slidable positions.

A further object of my invention is to provide a wnstruction of hardwareassembly for converting double hung slidable windows into tiltable andangularly adjustable windows in which pintle members are carried lby thewindow sash for coaction with recessed sash strips arranged tovertically slide in the double hung window stiles.

A still further object of my invention is to provide a construction ofhardware assembly for installation on double hung reversible windows inwhich pintle members are arranged to be mounted on the window sash forcoaction with recessed sash strips vertically slidable in the doublehung window stiles with means associated with the pintles for latchingthe window sash in selected tilted positions with respect to the windowstiles.

Other and further objects of my invention reside in an improved assemblyof hardware for enabling double hung vertically slidable window sashesto be convertibly used in tilting or reverse positions as set forth morefully in the specification hereinafter following by referring to theaccompanying drawings, in which:

Figure 1 is a front elevational view of a double hung verticallyslidabl-e window in which the sashes are equipped with the hardware ofmy invention for enabling the sashes to be tilted or reversed inselective angular planes; Fig. 2 is a vertical sectional view taken online 2-2 of Fig. 1 and illustrating the sash in dotted line position;Fig. 3 is a fragmentary elevational view of a window sash showing thesash strip interposed between the window sash and the window stile andinterlocked for vertical adjustment in the normal manner intended forthe operation of double hung window sashes; Fig. 4 is a verticalsectional view through the portion of the sash and stile of the windowillustrated in Fig. 3 with certain of the parts partially broken awayand shown in side elevation; Fig. 5 is a fragmentary vertical sectionalview of the sash illustrated in Figs. 3 and 4 but showing the conditionjust prior to an orientation of the sash with the weather strippingwithdrawn from the sash strip to allow tilting of the window sash; Fig.6 is a View similar to the view illustrated in Fig. 5 but showing thewindow sash in itilted position with respect to the vertical windowframe; Fig. '7 is a horizontal sectional view taken on substantiallyline 'l---? of Fig. 4; Fig. 8 is a horizontal sectional view takensubstantially on line 88 of Fig. l; Fig. 9 is an enlarged sectional viewtaken substantially on line 9-4 of Fig. 6 and illustrating the sash intilted position with respect to the sash stripping and double hungwindow frame; Fig. 10 is a vertical sectional view taken substantiallyon the line til- 10 of Fig. 3 and illustrating the weather stripping inextended position between the sash and the sash strip; Fig. 11 is aperspective view illustrating the spring member which is employed inassociation with the sash strip for floatatably mounting the window sashbetween the window stiles; Fig. 12 is a perspective view of afragmentary portion of the sash strip showing the mortise therein forcentering the spring member of Fig. 11; Fig. 13 is a view similar to theview illustrated in Fig. 12 but showing the opposite side of the sashstrip including the recessed portion for receiving the pintle of thewindow sash, the recessed portions for the cam locks, the bearingsurface over which the cam locks slide, and the mortises for receivingthe window stripping carried by the window sash; Fig. 14 is afragmentary .perspective view of the edge of one of the window sashesembodying my invention and showing the pintle, the locking cams, and theweather stripping associated therewith for coaction with the sash stripof Figs. 12 and 13; Fig. 15 is an elevational view of one form ofhardware which is applied to the window sash; Fig. 16 is a sideelevational view of the hardware shown in Fig. 15; Fig. 17 is atransverse sectional view taken on line Illl of Fig. 15; Fig. 18 is aperspective view of the weather strip and the actuator connectedtherewith which is employed in the double hung sash of m invention; Fig.19 is a fragmentary perspective View of a portion of a sash stripshowing a modified form of hardware carried thereby; Fig. 20 is afragmentary perspective view of a portion of the window sash carryingthe modified form 1 is of hardware which coacts with the form ofhardware illustrated on the sash strip in Fig. 19; Fig. 21 is atransverse sectional View taken through the hardware which is carried bythe sash in the arrangement shown in Fig. 20; Fig. 22 is a top plan viewof a further modified form of hardware, including a pintle and lockingcams adapted to be carried by the window sash, the hardware beingpartially broken away and shown in horizontal section; and Fig. 23 is aview similar to the view shown in Fig. 22 but illustrating a furthermodified form of hardware adapted to be mounted on the window sash.

The construction of hardware shown herein, for converting double hungwindow sash insta1la-. tions to enable the sashes to be operated eitherin vertically sliding arrangement or in tilting and reversingarrangement, is an improvement over the hardware set forth in my LettersPatent 2,332,500, granted October 26, 1943, for Safety reversiblewindow, and my co-pending application Serial No. 605,581, filed July 17,1945, for Safety reversible window, now Patent 2,423,675, dated July 8,1947. In the reversible window construction of my present invention thehardware is considerably simplified and production costs decreased whileincreasing the effectiveness of operation of the window. In the hardwareof my present invention a pintle member is secured to diametricallyopposite positions of the window sash and is associated with a pair ofcam members. A sash strip which is slidable in the window stiles isprovided in each side of the window sash and carries a bearing plate anda central recess which coacts with the cam members of the window sash,respectively. The sash strip is provided with yieldable means operativeto continuously urge the sash strip toward the window sash forfioatatingly suspending the sash between the stiles of the window frame,In this floatating position the sashes may be freed-by retraction ofnormally interlocking weather stripping and the tilting of the windowframe sash to any desired angular position through the window frame. Thearrangement of cam members carried by the hardware on the window sashand the coacting hardware carried by the sash strips is such that thesashes may be locked in vertically sliding position with respect to thesash strips for operation of the window as a normal double hung window.However, upon retraction of the window stripping, the window sash may beshifted to a tilting position in which the sash strips are eachlaterally displaced against the yielding action of the springs carriedthereby to a position gripping the opposite window stiles forfrictionally maintaining the window sash in any desired angular positionto which the sash may be moved. When the reversible window is to berestored to operation as a double hung vertically slidable window, thesashes are moved to a position in alignment with the sash strips,whereupon, the cam members on the hardware carried by the window sashesenter the recesses in the hardware carried by the sash strips freeingthe sash strips from frictional engagement with the window stiles andrestoring the floatating support of the window sashes through the springmeans carried by the window strips, thereby enabling the window sashesto again operate freely as a normal doublehung slidable in the stiles 2and 3. The usual sash weights and guide pulleys therefor have beenillustrated as part of the standard double hung vertically slidablewindow. The sashes i and 5 are each cut down at opposite sides to awidth narrower than normal, and the reduced width built up to theoriginal normal width by sash strips represented at 6 and located ateach opposite edge of the sashes 4 and 5. Each sash strip 5 serves as asupporting means for the sash through sash cord connecting meansrepresented at 6a. The opposite edges of each of the sashes are mortisedas represented at l to serve as a housing for the weather strippingrepresented at 8.

The weather stripping 8 is shown more clearly in Fig. 18 as providedwith a recessed leading edge represented at 9 and a horizontallyextending actuator l5 secured at one side of the weather strip 8. Theactuator ii] is offset from the center of the weather strip 8 so thatthe actuator ID in passing through the window sash represented at 4 isoffset from the plane of the window glass represented at l l and may beadvanced or retracted with respect thereto in a plane removed from theplane of the glass H. The actuator l9 passes through an escutcheon platel2 secured to the inside of the frame of the window sash 4 and whichserves as a bearing surface for the cam member I4 carried by manuallyoperable lever device 15 which is pivoted at it on the actuator H1. Thelever device I 5 is cut away or recessed at H to allow the lever memberto move to the position represented in Fig. 4 in which weather strip 8is projected in slots 1 by means of the symmetrically disposed springs58 and 19 without obstruction by stop pin 20 on actuator H}. The stoppin 20 carried by actuator it serves to limit the outward projection ofthe weather strip 8 against the action of coil springs l8 and i9 and atthe same time serves as a stop for the cam i l of lever I 5 in the psition illustrated in Fig. 4 when the weather strip 8 is retracted intothe slot, groove, or mortise I. The actuator it also carries adiametrically dis,

- posed stop 2! which serves as an abutment for the lever 15 in theposition illustrated in Fig. 6, while the sash is in a position forangular or tilting movement for reversible operation within the windowframe.

The weather strip 8 is recessed at 9 to permit the weather strip toclear at its center the hardware fitting which is carried by eachoppositeside of the sash. This hardware fitting comprises a plate member22 which is provided with a horizontally projecting pintle 23 at thecenter thereof and a pair of symmetrically arranged cam members 24 and25 at opposite sides of pintle 23. The plate 22 is provided withsymmetricaliy arranged screw apertures 28, 2?, 28 and 29 therein for thepassage of securing screws 25a, 27a, 28a, and 29a, Axially disposedopposite portions of plate 22 are recessed as represented at 22:; and22b for the passage of the weather strip 8 on opposite sides of therecess 9 thereon.

The coacting sash strip at each side of the window sash is constructedas represented more clearly in Figs. 12 and 13 wherein the side of thesash strip 6 which directly contacts the edge of the sash 4 is mortisedas represented at 30 for receiving the weather strip 8 when the weatherstrip 8 is in projected position. The central portion of the sash strip6 is provided with a hardware fitting represented by plate member 3| ashaving a central recess 32 adapted to receive pintle 23 extending fromthe sash 4 and having a pair or symmetrically arranged recesses 34 and35 operative to receive the respective cam membars 24 and 25 on the sashplate 22 when the Window sash is in vertically slidable double hungarrangement as illustrated in Figs. 3 and 7. The plate 3| is secured tothe sash strip 6 by screw members which pass through aperturesrepresented at 33. The opposite ends of the plate member 3| are recessedas represented at 3 la and 3|b to receive the projecting portions of theweather strip 8. The opposite side of sash strip 6 is provided with asymmetrically arranged mortise represented at 36 within which I mountthe flat leaf spring 31. The flat leaf spring 31 is shaped to conformwith the mortise 36 in the sash strip 6. It will be observed thatmortise 36 has a central elevated portion 35a, and a pair of oppositelydisposed pocket-like recesses in each end thereof. The flat spring 31has a center portion 310. which is shaped to snap over the raised centerportion 36a of mortise 36 to provide a support for oppositely extendingflat yieldable spring-like portions 312) and 310. These eXtendingportions 311) and 310 tend to continuously bear against the oppositestiles of the window frame for continuously urging the sash strip 5toward the opposite sides of the sash illustrated, for example, at 4.This arrangement of yieldable spring 31 is important because of themanner of locking the sashes in angularly shiftable and reversibleposition. The sash strip 6 is recessed at 38 immediately behind therecess 32 in plate 3| so that pintle 23 may project through plate 3| andbe journaled thereby. When in the vertically slidable positionillustrated in Figs. 3 and 7 ythe sash 4 has the cam members 24 and 25thereof fitting into recesses 34 and 35 in plate 3|.

Any free space or lost motion connection between the sash strip 5 andthe window stile 3 is taken up Or accommodated by yieldable spring strip31, as represented in Figs. 3, 4, 7, and 8. Under these circumstances,wherein the window sash is free for vertically slidable movement,weather strip 8 is projected into interlocking engagement between sash 4and sash strip 6. However, when the sashes are prepared for angularshiftable movement the weather strip 8 is retracted from engagement withsash strip 6 as represented in Fig. 5. Under these conditions sash 4 maybe swung or angularly shifted from the position illustrated in Figs. 3,4, 5, '7, and 8 to the position illustrated in Fig. 6. As the sash 4commences the angular path of movement cam members 24 and 25 ride out ofrecesses 34 and and establish frictional engagement with the bearingsurface of plate 3| on sash strip 6. The area on plate 3| intermediaterecesses 34 and 35 is left plain and solid to serve as a trackway overwhich cam members 24 and 25 are arranged to ride as represented in Figs.6 and 9. The cam members 24 and 25 force sash strip 6 transversely ofthe window frame I and establish a gripping engagement between sashstrip 6 and the stiles 2 of the Window frame I. This gripping engagementis effected against the action of flat springs 31. The opposite ends offiat spring 31 represented at 311) and 31c move into the recesses insash strip 6 formed by the mortise 36. The cam members 24 and 25, inriding against the solid fiat portion of plate 3|, serve to establishvery substantial locking resistance for the window sash enabling windowsash to be maintained in any angular position to which the sash ismoved.

To decrease manufacturing costs I may construct hardware for the windowsash as repre- 7;: her carried in each of the coacting sash strips,..

sented in Figs. 19, 20, 21, 22, and 23. In the construction illustratedin Fig. 17 a plate member of relatively low-grade metal 22 is providedand is apertured to receive metallic inserts of highgrade tool steelconstituting pintle 23 and cam members 24 and 25. The inserts areriveted to the plate 4|], and the plate 22 fastened to the sash 4. Thusthe more expensive steel inserts constitute but a small portion of theover-all area of the hardware with commensurate saving in manufacturingcosts.

As represented in Figs. 19, 20, and 21, the cam members carried by thesash 4 and the recesses carried by the sash strips 6 may be shaped torelieve the sudden frictional application of forces to opposite sides ofthe window frame. In Figs. 19-21 I have shown cam members 44 and 45 inthe form of segments high in the center and tapering at each end thereofto the base plate 46 which is secured to sash 4. Base plate 46 carriesthe pintle 41 projecting transversely therefrom. The coacting sash strip6 illustrated in Fig. 19 contains plate member 48 having segmentalshapedrecesses 49 and 50 coactin with camshaped segments 44 and 45 on thehardware carried by the sash 4. A central aperture 5| in plate 48 onsash strip 6 receives the projecting end of pintle 41. As the sash 4 isangularly shifted from a vertical position to any selected angularposition, the segmental cams 44 and 45 gradually displace the sashstripping 6 from the sash 4 against the action of spring 31 gripping theopposite sides of the window frame by frictional contact between thesash strip 6 and the stiles 2 against the action of springs 31. Therelease of the sash strip 6 from the stiles 2 is also eifected graduallyas the cam segments 44 and 45 ride out of the segmental recesses 49 and50, respectively.

In Fig. 22 I have shown the hardware for the sash formed from cast metalconstituting a plate 52 having a central pintle 53 thereon and a pair ofsymmetrically arranged earns 54 and 55 on opposite sides of pintle 53.This relatively inexpensive hardware is secured to opposite edges of thesash 4. Because of the relative inexpensive construction of the casthardware of Fig. 22 replacement may be made from time to time at lowcost.

In order to facilitate movement of the window sash with respect to thesash strips, I may shape the cam members in the form of semi-sphericalmembers as represented in Fig. 23 at 56 and 51. The semi-sphericalmembers 56 and 51 are riveted into the plate 58 on opposite sides of thecentral pintle 59 as shown.

While I have described my invention in certain preferred embodiments, Irealize that modifications may be made and I intend no limitations uponmy invention other than may be imposed by the scope of the appendedclaims.

What I claim as new and desire to secure'by Letters Patent of the UnitedStates is as follows:

1. Hardware for controlling the position of a double-hung window sash inlongitudinally ex tending stiles in a window frame for compositetranslatory and angular movement of the sash with respect to the windowframe comprising sash strip members slidable in the stiles of a windowframe and disposed at opposite edges of translatory and angularlymovable window sashes, pintle members projecting from opposite sides ofeach window sash, a recessed plate memspring means interposed betweenthe stiles and said sashstrips and symmetrically disposed above and.below said plate member, and means carried by said sashes and coactingwith the recessed plate members carried by the coacting strip tendingstiles in a window frame for composite translatory and angular movementof the sash with respect to the window frame comprising strip membersslidable in the stiles of a window frame and disposed at opposite edgesof translatory and angularly movable window sashes, hardware membersattached to opposite sides of the window sashes, pintle membersprojecting from said hardware members and cam devices extending fromsaid hardware members and symmetrically disposed on diametricallyopposite sides of said pintle members, coacting hardware members carriedby the inner faces of each of said strip members and being recessed toreceive said pintle members and said cam devices, the external faces ofsaid strip members being longitudinally recessed and spring meansinterposed between the longitudinal recessed strip members and thestiles for urging said strip members into engagement with the sides ofsaid window sashes, whereby, said cam devices, upon rotation of saidwindow sashes, about said pintle members frictionally engage the platemembers carried by said strip members for forcing said strip membersinto frictional grip engagement with the stiles of said frame.

3. Hardware for controlling the position of a double hung window sash inlongitudinally extending stiles in a window frame for compositetranslatory and angular movement of the sash with respect to the windowframe comprising sash strip members slidable in the stiles of a windowframe and disposed at opposite edges of translatory and angularlymovable window sashes, pintle members and symmetrically arranged cammembers projecting from opposite edges of the central portions of eachwindow sash, hardware carried by each of said sash strip members on thefaces adjacent said window sashes in alignment with the pintle membersand cam members carried by" said window sashes and including recessedportions for receiving the pintle members, said sash strip members eachhaving recesses in the faces adjacent said stiles and spring meansoperative in said recesses and interposed between said sash stripmembers and the stiles of the window frame for normally urging said sashstrip members against the edges of said sashes, said cam members beingoperative under control of the angular movement of the window sashes fortransversely displacing said' sash strip members for effectingfrictional gripping engagement with said stiles.

4. Hardware for controlling the position of a double-hung window sash inlongitudinally extending stiles in a window frame for compositetranslatory and angular movement of the sash with respect to the windowframecomprising sash strip'members slidable in the stiles of' a windowframe and disposed at opposite edges of translatory andangularly'movable window sashes, plate members secured to opposite-edgesof each of said window sashes, pintle members extending axially fromsaid plate members in opposite directions" strip members against saidwindow sashes, said cam members being operative from the control of saidangular movement of said sashes for effecting the compressionof saidstrip members against the action of said spring means into frictionalgripping engagement with said stiles in anytransverse position of saidwindow sashes along said stiles.

5. Hardware for controlling the position of a double-hung window sash inlongitudinally extending stiles in a window frame for compositetranslatory and angular movement of the sash with respect to the windowframe comprising sash strip members slidable in the stiles of a windowframe and disposed at opposite edges of" translatory and angularlymovable window sashes, plate members attachable to opposite edges ofsaid window sashes, pintle members and" cam members each fastened tosaid plate mem-' bers and extending transversely therefrom, coactingplate members carried by said sash strip members and being recessed toreceive said pintle members and cam members when said sashes operatelongitudinally of said stiles, said sash strip members each havinglongitudinally extending recesses therein in the faces adjacent saidstiles, a central projecting portion on each of said sash strip membersin said recesses, fiat leaf spring members disposed in said recesses anddetachably connected to said central projecting portions of said sashstrip members and yieldably extending between said sash strip membersand said stiles for urging said sash strip members). into engagementwith the opposite edges of said" window sashes, said sash strip membershaving recesses therein for receiving the ends of said flat leaf springmembers when said sash strip members are transversely displaced bymovement of said window sashes and operation of said cam members againstthe plate members car ried by said sash strip members for frictionallygripping said window stiles.

6. Hardware for controlling the position of a double-hung window sash inlongitudinally extending stiles in a window frame for compositetranslatory and angular movement of the sash with respect to the windowframe comprising sash strip members slidable in the stiles of a.

window frameand disposed at opposite edges of translatory and angularlymovable window sashes, plate members secured to opposite edges of eachwindow sash and having segmentalshaped tapered cam-like membersprojecting therefrom, a central pintle disposed axially within saidsegmental-shaped tapered cam-like mem-,'

bers, coacting plate members carried by said sash strip members andhaving segmental-shaped tapered recesses therein, and a central recesstherein respectively aligned with the segmentalshaped tapered cam-likemembers and the axially arranged pintle carried by the plate membersfastened to said sashes, said sash strip members each havinglongitudinally extending recesses in the faces thereof adjacent saidstiles, spring means interposed in said longitudinally extendin recessesbetween said sash strip members and said window stiles for normallyurging said sash strip members into engagement with opposite sides ofsaid window sashes, said segmental-shaped tapered cam-like members beingoperative for gradually shifting said sash strip members toward or awayfrom said window stiles as said sashes are angularly shifted withrespect to said window frame for looking or releasing said window sashesin selected angular positions with respect to said window frame.

7. Hardware for controlling the position of a double-hung window sash inlongitudinally extending stiles in a window frame for compositetranslatory and angular movement of the sash with respect to the windowframe comprising strip members slidable in the stiles of a window frameand disposed at opposite edges of translatory and angularly movablewindow sashes, hardware members attached to opposite sides of the windowsashes, pintle members projecting from said hardware members and camdevices extending from said hardware members and symmetrically disposedon diametrically opposite sides of said pintle members, coactinghardware members carried by the inner faces of each of said stripmembers and being recessed to receive said pintle members and said camdevices, the external faces of said members being longitudinallyrecessed with a central projecting portion extending from thelongitudinal recess in each of said strip members, a substantially flatlongitudinally extending spring strip individual to each of saidrecesses and having an offset portion disposed centrally thereof and apair of resilient end portions with a shoulder intermediate theconnection of said offset portion and said end portions, said springstrip being yieldably engageable at the shoulders thereof with thecentral projecting portion for detachably gripping the opposite ends ofthe central projecting portion in the longitudinal recess of each ofsaid strip members with the end portions of said spring strip bearingagainst the adjacent stile for urging said strip members into engagementwith the sides of said window sashes, whereby said cam devices, uponrotation of said window sashes, about said pintle members frictionallyengage the plate members carried by said strip members for forcing saidstrip members into frictional grip engagement with the stiles of saidframe.

LOUIS I. ALPERIN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,287,741 Levyn June 23, 19422,332,500 Alperin Oct. 26, 1943 2,423,675 Alperin July 8 1947

